Dwelling incinerator door



4 1,642,365 S 3 1927 H. F. FISHER DFIELLING' INCINERKTOR noon OriginalFiled July 26, 1924 Patented Sept 13, 1927. p it i i j UNITED; STATESPATENT 1 HARRY rr-snare or ST. PAUL, MINNESOTA.

DWELLING ENCINEEBATOR DOOR.

ori inal application filed J'u1y'26, 1924, Serial in. 725,442. Dividedand this (application filed 'ipr fl 22,

1 t v v 1926. Ser-ia1.I I-o.10.6,18.'

v invention relates to incinerator doors and wis {particularly adaptedto, :a type t I door. which has anau-toinatic {closing shield atoprevent gases and smoke from-the ch1m- 6 trey entering into the room.while the door is c-pen or being opened. I This application is adivision of my application,iSerial Nam imvasaaa, fiiedoui ae,1924.;.

,A-:1fieatn-reof, my. invention res-ides iiia l0 door adapted .to heplaced in the chimney line and provided with means whereby the refusefrom other incineratordoors cannot- .hecome lodged or engaged on theopening ofadoorloelom I '7 7 It is: also a iieatureloffrny invention toprov-ideran inner clos.ureinen1-ber which op crates automaticallytokeepthe door opening closed on the inner side of the doorand toprovide a smooth arouated surface on the flue, side of the;door-opening. This icon- .struction provides means whereby when 'theincinerator. door is open to receive the refuse, the rear door meansrem-ainswclosed preventing any gases -01"; smoke entering the roominto-Which the incineratondoor opens. Upon closing the door the innerclosure is opera-ted automatically atwapoint jnstube ifore the closingof the room incinerator door andat ;a time when the refuse receivingscoop doorris' closing very ;rap-idly,,so that the innerdoor is only-=openedrnomentarily andfis operated automatically so that as the scoopdoor closes in the room, the inner door operates automatically andcloses automatically. This is accomplished lever and cam meansassociated With'the main scoop door of the incineratordoor.

.Itisa'feature ofsmy invention to provide a (an inner door Whichispivotally connected in a. manner so that. it will move in closingposition by gravity automatically atteri it has been-moved by theclosing of the main :scoop' door which engagesav'lever fastened v to thepivotal connection of the inner door.

illustrating thescoop door in open position. a Figure '3 18 a front viewof the refuse or incinerator door. 7

illustrating the lever and cam for operating thefisarne. The leverope-rating member is placed "on either end or both ends of theincinerator door. 1

I In the drawings my incinerator or refuse door lis adapted to {heplaced in the ohimv-neyE or a residence or building. Theincinenator'door'l is adapted to he placed intthe Wall of the buildingas illustrated in a Figure l with? an opening extending through the wall"into the flue lining of the chimney.

incinerator door I is positioned so that the face plate 30 of the sameprojects at an angle and isp'ivoted at 182, a handle 31 hein-gplaced atthe top or free end of the door of the plate ,39 so that the door plateand door canloe engaged to open into the position illustrated in Figure2.

' Therdoor-l isforrned of a scoop liken-w :tnfre with the faceplate 30to which the :h-and-le31 is attached :so that the door can heopenedeasily and is provided with the Figure 4 is .a sectional view ofFigure 1 SilidG plates 33 WlllClil'fiP-G, rigidly secured to thet'acejvplatej30"in a simple. manner.

Formed integral ith the side plates 33 .1 provide a bOttOm'meHlbQI 84Which extends acrosslhetween thesides 33 landspaces the :sa1ne apa-rttoprovide the scoop like constrnctionlto the ;.door 1.. This :scoop likeconstrn ct-ionyot the doorl provides a refuse a receptacle into whichthe garhage and other l efiuseycan be discharged when the door I is inopen'pos'itiomas illustrated in Figure .2

of theedraiv-ings; The outer edges of the side's are of arcuate shape toform an arc with :a radius approximately from the liingiiaigipoint 32'sothat the doorl inxpivpermitsthe sides to slide freely-into.

otin g I the-opening 1n the chimney 7 door I 45 :Thesefeatnres togetherwith other par- The construction'of the scoop ticula-r formation iofmydoorva-nd the con-' (the face plate-and isides .33 together with the'nectingparts will'be moretullrysl'et diorth bottom 34, provide ascoop'lilre -:constr11'ction in the specification and claims. 1 3. tothe door which is very adaptable use Inthe drawings forming part of thisand x vhich vpermits the door to the-hinged specification: 1 r 'zat 32ina-manner :so that when it 'is sub- Figure 1 is a cross-sectionalviewof the refuse receiving door tor ncinerators. Figure 2 is a smmrlarvrew to Figure 1 :stantially in closedi -position as illustratedin-Figure 1, the bottom 34 of the door I is in line with the bottom 35:of the :open-c ing in the chimney l and at a steep i11- cline so thatthe refuse in the scoop like door I will he dropped quickly and readilyinto the cl'iiinney flue l This is also tacilitated by the frame whichsluiports the door I at the pivot point 32. This frame work is securedto the chimney in any simple manner and forms the casing: around theopening in the chimney and about the door I.

\Vithin the opening: extending into the chimney I5 tor the door I, Iprovide it shutt'er door :111 which is pii 'otally secured at 37111111which 'lorined oi an arcuated form so as to lit over the arcuate edgesof the sides El -It. The door 36 is of a width so as to practicallyclose the opening into which the sides of the door I lit in the chimneyor opening. and thus the sides of the door 36 rest against tlwarcuatedsides of the door I when the door I and the shutter door 36 are inclosed position, as illustrated in 11111 lineof liin ure Il. oi thedrawings.

The door :36 is adapted to be operated by a lever 38 which is operatedby the cam 39 in the closing 1.1peration oi? the door I when theshoulder side of cam 39 comes in contact with the tree end it) of thelever 38.

The lever 38 is pivot-ally connected to the end ot the shaft or pirotpoint 37 ot' the door Zlti and is formed with a shoulder 4-1 whichengages against the shoulder it? when the arm 38 is moved by the closingmove- :ment oi? the door I when the cam 39 engages against the free endall) of the same. The arm 38 however, is free to move or lift up ardsinto the dotted position illustrated in Figure 2 during the openingoperation of the door I and when the cam edge of the cam 39 engagesunder the free end of the lever 38 at the end el-O. This permits thedoor I to be opened without operating or moving the door 36, the lever38 lltting up into the dotted position of Figure 2 while the door Iopens, and not disturbing the position ot the door 3 The door 36 hangs11y gravity into closed position illustrated in -full lines in Figure 1.hen the incinerator door I is moved into closed position, from theposition illustrated. in Figure 2, the shoulder of the cam 39 engagesagainst the tree end 1110 of the lever 38 and the shoulder ends of thelever 38 and the sleeve of the door 36 which is pivoted to the rod 37,which are. respectively 41 and 42, engage higether and cause the door 36to he opened by the lever 38. This operation is almost int-sinntancnir'.its the door I allowed to slam shut it operates the door 36 to open thesame quickly at the end of the stroke or dosing ot the door I and thusthe shutter door is only open i'nomentarily. This permits the grarhageor refuse from the scoop incinerator door I to he quickly discharged-into the chimney flue E. The slammin g' o't' theshutter door 36 whichfalls into closed position by gravity alter the cam 2'19 has disengagedthe tree end l0 ot the lever 38, together with the slannninn ol' theincinerator scoop door I. causes the rel'use in the door I to he1lischarne1l readily and prcwents it from remaining in the scoop ol? thedoor I. This adds materially to the practical operatireum's o'l my doorand shutter con struction.

It is quite an important feature. of my invention in providing theshutter door 36 which keeps all smoke. and gases out of the room intowhich the incinerator scoop door I opens. It is not 1'lesiral'1lcto havethe gases or smoke troin the chimney flue F1 come out into the roomwhile the incinerator door is open and because this has been true ofmany other constructions o'l doors, these incinerator doors have beennecessarily placed in hallways or other out of the *ay places. This isnot necessary with my door as the shutter door keeps the opening closedat all times and until the incenerator scoop door I is practically inclosed position. Then when the shutter 36 is opened. it only momentarilyso that the tare plate d0 of the door I clo-es the incineintor dooropening; almost in'unediatel upon the openi 11g: oi. the shutter 36. Ihave tonnd this particular door co11- strnction for incinerators to bevery desirahle and much preferred over any door where the shutter is notapparent.

In operation and use my door is very simple and the shutter 16 remainsclosed throughout the entire opening: of the in inerator scoop door I,and as long: as the door I remains in open position the shutter 36remains closed. completely shuttin; oll the {IRS chamber 01 the line 1ot the chimney of the room in which the incinerator door I opens. Yetwhen the door I is moved into closed position the shutter a1; is quicklyand eilectively opened to discharge the refuse into the incinerator llnechimney ll This incinerator .tlue chimney F1 is the main line chimneyfor the incinerator and for the heating plant in most ases where.incinerators are employed and for this reason it will he readilyappreciated. that the shutterdoor o l. great importance in my invention.The installations ol my door l are been quite satisfactory in everyrespect. and apparently are being greatly appreciated in the many placeswhere I have had them installed, so that the effective operation 111 thesame is quite complete.

I11 the drawings I have illustrated the lever operating means 38attached to either side of the door I and opcrahle with the cam 23$)secured to the side plates 33. This causes the ctlectivc operation otthe shutter door 86. It is quite apparent. however, that only oneoperating means. such no the lever 38. together with the cam 39 and thesl'ionldcrs all and 4-2 are necessary to operate the shutportion of thesides forming saidvdoor passwar 36 when-lit is ofa smallnazture, notbeing of too heavy a construction. On the larger door it may bemore-practical "to use two is of ordinary light. weight construction.The operation is Ivory effective and the incinerator door I gives averysatisfactory The effect of the shutter in much desired and greatlypreferred to an incinerator door not having this shutter arrangement. II I In accordance with the patent statutes I have described theprinciples ofiop'eration of my incinerator scoop door, and while I haveillustrated. a particular formation in the drawings, I desire to have itunderstood that these are only suggestive as to the carrying out of myinvention "and that the invention can be applied to other uses andcarried out by other means than, those above set forth within the scopeof the following claims.

1 I claim:

'1. A door for an incinerator in combina tionwith a chimneyconnecting'with a combust1on chamber, a scoop-like door p1votalsecuredto said chimney, a passage leading l fi om said door into said chimneyand guard-like safety door pivoted inthe top ageway and adapted to beopened automatically upon, the closing of. said incinerator door.

2. An incineratordoor including a scooplike body portion pivotallysecured to an incinerator chimney in a-manner to cause the bottom ofsaid scoop-like door to be inclined at a steep downwardlydependingangle, arc-. uate' side walls formed on saids door, an

' I arcuate guard safety door pivotally secured like door.

to, lie in close proximity to the arcuate edges of said side Walls toclose the door opening into said chimney and means for automaticallyoperating said safety door by cam lugs positioned on the side wall ofsaid 'scoop- 3. An incinerator door including a scooplike body portion,ahandle for operating said door on the face plate thereof, said doorbeing pivoted "in a manner to swing into andout ofa passagewayleadinginto an incinerator chimney and a safety door pivotallysecured in theupper portion of the sides form ng saldpassageway 111 a manner to beoperated automatically by said incinerator door. I I

4. An incinerator 'door including a face plate, handle meansfo'r'operating said door, scoop-like walls having arcuate outer edges, abottom space between said side walls, a safety guard door pivotallyassociated, with said scoop-like door in a manner to close by mains openonly momentarily.

like door vgravity the opening leading from said door ant-o the.incinerator chimney to which it is door is closed.

I 5. An incinerator door including a closure member having a door faceplate, said member including a scoop-like means adapted to receiverefuse when in open position, and shutter means associated with saidscoop-like, door means adapted to be automatically opened and closed bythe closing of said door on the closing movement onlyof said door, saidshutter closing the gas opening of an incinerator flue; while thescoop-like door'is in open position.

6. An incinerator scoop-door, means for pivotally holding said door inan incin-' 'erator flue opening adapted to extend in an inclinedposition to dis-chargethe refuse in the same into the incinerator flueopening 'inclosedposition, and a shutter adapted to be, automaticallyoperated only by the closing of door, said operation of the incineratordoor of-the shutter taking place at the moment when'the incineratorscoop door is practically closed so that the shutter re- 7. An"incinerator closure door including a scoop-like pivoted .member adaptedto form the closing door' of the incinerator door opening, a gas andsmoke shutter door associated with said scoop-like door, adapted to hangand means for operating said shutter door by said scoop-like doorautomatically on the closing of the scoop-like incinerator door I 1 r'8. An incinerator closure door including a scoop-like member pivotallyconnected to the opening in an incinerator flue, an arcuate shutter dooradapted to hang freely in closed position'by gravity toclose the flueopening of the incinerator door to preventgases from coming out of saidopening when the scoop-like door is in open position and means forautomatically operating said shutter door only on the closing movementof-said scoop-likeincinerator door.

, 9. An incineratordoor having a scoopconstruction' pivotally I securedto an" incinerator flue opening, and shutter means adapted to close the:flue opening while the door isin open position and means upon said doorfor'opening said shutter by .the closing movement cinerator door. I I

1O. An incinerator Cloor including a I by gravityinto closed position ofsaid scoop-like in I svoop-like 1111 11111111 1111111111111 110 101 111:1 11001 1111210511111 101' 2111 1111 11101 111 1'11' 1111111111111111111 1110111111 1 111151 5 1011111 11 011 H1111 1111111,211011;: 1111. s11 11 1110111111,:1 1111111101 1111121111111 10 111101111 01 01 $11111 01111011 111111 1 10. 10 11111 111111 0111111111gt0 111 01 1 111 gases coming 01111 111 1111 1111 111- 1'11101' 111011111 11 1111 (1001' 111 01 011, 51 11111 1, operating 1121 01"111011110 1111111111011 130 111 1111' (11111 1111 011 the 1:111si11g 0'1the 111101 11101111 11- 11111111 jmlv before the 1 10si11g 110111110001" 1110 10 1. A11 1111 11101 111'111' 11001' S'GPHI'Qd 110 1111 111-01110111101 111111 0111 111110. :1 11111111 01- 11100011111111 with 111111 11001 1101711111113 0101111111 021111 111111 11111 11111 11 1111111111211115 for 0111 11111}; 111111 1111111111- ting 21111011101111-010S1ng 01 511111 :11111t1'1-11' 11111'- 111;: 1111 1-11ts111g'11'10v01n1111t 01E $11111 110111;.

HARRY F. FISHER.

